STB PDF

Test methods for electrical materials, printed boards and other interconnection structures and assemblies - Detection of plating defects in unpopulated circuit boards by computed tomography (CT). Original standard UNE-EN IEC 61189-3-302-2025 in PDF full version. Additional info + preview on request

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Materials for printed boards and other interconnecting structures - Part 2-52: Reinforced base materials clad and unclad - Thermosetting hydrocarbon resin system, woven E-glass reinforced laminate sheets of defined flammability (vertical. Original standard UNE-EN IEC 61249-2-52-2025 in PDF full version. Additional info + preview on request

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Materials for printed boards and other interconnecting structures - Reinforced base materials clad and unclad - PTFE unfilled laminate sheets of defined flammability (vertical burning test), copper-clad. Original standard UNE-EN IEC 61249-2-53-2025 in PDF full version. Additional info + preview on request

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Electroacoustics - Personal sound exposure meters. Original standard UNE-EN IEC 61252-2025 in PDF full version. Additional info + preview on request

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Fibre optic interconnecting devices and passive components. Basic test and measurement procedures - Tests. Axial compression. Original standard UNE-EN IEC 61300-2-11-2024 in PDF full version. Additional info + preview on request

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Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 2-22- Tests - Change of temperature. Original standard UNE-EN IEC 61300-2-22-2025 in PDF full version. Additional info + preview on request

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